A new bcachefs release

Kent Overstreet has announced a new majorrelease of his bcachefs filesystem.Changes in this release includewhole-filesystem encryption, backup superblocks, better multiple-devicesupport, a user-space filesystem checker, and more. "We can also nowmigrate filesystems to bcachefs in place! The bcache migrate command takesan existing filesystem, fallocates a big file in it, creates a newfilesystem (in userspace) on the block device but using only the spacereserved by that file it fallocated - and then walks the contents of theoriginal filesystem creating pointers to all your existing data."There is an on-disk format change, but there's a chance it's the last one.